Water-tube boiler.



PATENTED JUNE 4, 1907.

EMRK.

WATER TUBE BOILER.

PPLIOATIN FILED DEO. 3,1906.

2 SHEETS-SHEET 1,

PATENIED JUNI; 4, 1907.

K. PARK. WATER TUBE BOILER.

APPLICATION FILED 1320.3, 1906.

2 SHEETS-SHEET 2.

lll lll! IVZUGMZOT:

7 IMM-I Wa' zn esse S L QM UNITED STATES ,PATENT orrion.

KENNEDY PARK, OF TOLEDO, OHIO, ASSIGNOR TO THE TOLEDO BOILER i WORKS COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

WATER=TUBE BOILER.

l Specification of Letters Patent.

Application med December 3,1906. Serial Ilm-1346.025.

drawings, and to the figures of reference marked thereon, which form a part of this specn'ication.

This invention relates to boilers for the generation of steam, and particularly to the water-tube type of boilers in which the watertubes are connected at their ends to headers or manifolds which stand substanti ally in vertical/planes.

An object of the invention is to so mount the headers or manifolds relative to the framework of the boiler as to facilitate the ready and easy removal or mounting of any or all of said headers and also to permit a free movement of each header or manifold as the water-tubes contract or expand, thus preventing a distortion of the tubes due tothe expansion thereof and consequently prolonging their lives.

A further object of the invention is to so construct and apply the hand-hole caps of the headers as to make a stronger and better joint between the header and cap, as is hereinafter more fully described. v

The invention is fully described in the following specification and illustrated in the actheir hand-hole caps.

companying drawings, in which,-

Figure 1 isa vertical longitudinal section of a steam-generator embodying thel features of my invention. Fig. 2 is a front elevation thereof with a portion of the casing removed and the exposed headers shown as devoid of Fig. 3 is a longitudinal section of one of the headers with the tubes and hand-hole caps secured thereto. Figs. 4 and 5 are rear and front elevations, respectively, of a header with the tubes andcaps removed, Fig. 6 is an enlarged central section of a hand-hole cap and retaining spider attached to the header casing, and Fig. 7 is a similar view of the same illustrating the cooperating aotion of the header with the i header casing when a bowing stress is applied to the former by a tightening of the bolt.

Referring to the drawings, 1 designates the front of a steam-generator of ordinary construction, 2 the water-tubes thereofwhich` Patented June 4, 1907.

connect fore'and aft with the usual headers or manifoldsv 3 and 4, respectively, and 5 transverse centrally-disposed steam and water drums, which connect with theA headers through the' banks of tubes 6. The headers or manifolds 3-4 are shown in the drawings as being of sinuous formation, but may be of any other desired ,shape or size, and as having their hand-holes 7 closed by the vusual caps 8, which are held to their seats by the coperation therewith of the spiders 8a and bolts 8b.

Surmounting the Yforward end of the boiler frame and su ported both by the brick work and the stan ards 9, to which latter it is riveted or otherwise suitably secured, is the transverse girder 10, which is shown as comprising the'two spaced channel bars 11-11 and the superimposed spanning plate 12, ,which latter rests u on said bars, thus forming a light but rigid girder of inverted U- shaped construction. I wish it understood, however, that I do not conne myself to such construction of girder or its manner of mounting, as the construction of the same may be changed as desired. p

The several forward headers 3 of the boiler are intended to be supported by the girder 10 in pendent relation thereto through the medium of the rods or suspending members 13, each of which is -shown in Fig. 1 ofthe drawings as having its upper end passed through a slightly enlarged aperture in` the girderplate 12, and prevented from withdrawal therefrom by a nut or head 14, and its lower end pivotally secured in any suitable manner to a perforated lug or ear 15 on the upper end of the associated header 3, whereby a free swinging movement of each header is permitted.

With the method heretofore employed of rigidly mounting both sets of headers, no movement thereof was permitted to allow for a longitudinal contraction and expansion of the water-tubes, thus causing them to become bent and distorted, due to the expandingstress, and liable to breakage when cooling and returning to their normal contracted state. It is apparent, however, with my im- IOO proved method ofl mounting the headers 3 that each header is permitted to havea free swinging movement relative toits supporting means to allow for the lengthening or shortening of the tubes as they expand or contract, and that a bending or distorting of the tubes and evils resulting therefrom is obviated. The rear headers 4 are shown as being rigidly mounted'in the usual or any convenient manner, as it is only necessary to mount the headers at one end of the boiler for movement relative to the supporting It is also apparent that this manner i parts. of mounting the headers 3 enables any or all to be easily and quickly disconnected from the supporting means and removed from the boiler for the purpose of repair or substitution.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is,-

1. A water-tube `boiler having pendent swingingly mounted lheaders or manifolds for the tubes, which are free from `a Subj acent support.

2. The combination with the several headersat one end of a Water-tube boiler, of superimposed means supporting the several headers for relative swinging movements, said means servingr as the sole support for the headers.

3. A water-tube boiler having pendent swingingly mounted headers or manifolds for the tubes, and rigid means from which the headers or manifolds are suspended.

4. The combination in a water-tube boiler, of the water-tubes, fore and aft setsof headers to which the ends of the tubes are conneeted, a girder superimposing one set ol' headers, and means for swlngingly suspendlng the several headersofsaid set from 'tl-1e girder, said means being the sole support for the headers.

5. The combination with headers of a water-tube boiler, of a girder rigidly mounted above said headers, and susthe forward pender members cooperating withfthe girder i and headers to maintain the latter in movable suspended position, said members being the sole means of support for the headers.

6. The combination with the several headers at one end of a water-tube-boiler, of a superimposed girder, and a plurality of members suspended from the girder and each swingingly carrying different ones of said headers to permit them te have independent In testimony whereof I have hereunto` .signed my name to this specification in the presence of two subscribing witnesses.

KENNEDY PARK.

l/Vitnesses:

C. W. OWEN, HAZEL B. HIETT. 

